Table 4 OCT-derived plaque characteristics in non-dilated and dilated left ventricle

Stenosis (%)

73.97 ± 10.62

75.45 ± 9.33

NS

Stenosis length

6.56 ± 4.52

8.58 ± 6.56

NS

Mean reference area (mm²)

6.38 ± 2.09

6.41 ± 2.22

NS

Minimal luminal diameter(mm)

1.22 ± 0.33

1.17 ± 0.21

NS

Eccentricity lumen index (%)

23.08 ± 10.24

24.77 ± 12.50

NS

Minimal luminal area (mm²)

1.62 ± 0.88

1.49 ± 0.54

NS

Lipid plaque (n, %)

31 (52.5)

14 (63.6)

NS

   FCT≤80 μm (n, %)

11 (35.5)

10 (71.4)

0.025

   Minimum FCT (μm)

88.52 ± 22.75

68.02 ± 21.76

0.008

   Mean FCT (μm)

139.98 ± 28.41

116.44 ± 23.54

0.010

   Lipid arc ( ° )

129.26 ± 40.53

142.05 ± 39.67

NS

   Lipid plaque length (mm)

4.00 ± 2.29

4.40 ± 2.28

NS

Calcium plaque (n, %)

42 (71.2)

12 (54.5)

NS

Fibrous plaque (n, %)

47 (79.7)

16 (72.7)

NS

Plaque rupture (n, %)

5 (8.5)

5 (22.7)

0.083

Thrombus (n, %)

3 (5.1)

2 (9.1)

NS